The danger is not depressurisation, the danger is damage to the flight control systems, damage to the electrical systems, punching holes in fuel tanks (and probably making a bit of sparking and friction heat while at it), puncturing a landing wheel and the like. There are many, many ways a small hole in a vital part can endanger or even disable a modern airliner. Add to that the danger of a sleep deprived, stressed out person on a red-eye shooting an innocent he believed to be a terrorist, or just that f-ing annoying kid who keeps crying and kicking his seat... Also; seeing as there is no such things as a clear shoot inside the anxiety tube that is an airplane, you are going to hit something (or someone) that would be better off with no holes in it - even if you're firing at a legitimate target.
I much prefer if those who can legally carry check their guns on boarding - over here in Europe at least there used to be (might still be) a strong box up front where you could store such things as guns.
And honestly; if you're so attached to your weapon that you can't be separated from it while flying, perhaps driving might be a better solution for everyone involved?
Step one: Release a bunch of 'critical' documents by 'mistake'.
Step two: Twiddle thumbs while terrorists / criminals abuse information released in step one.
Step three: Point to attack in caused by step two, argue that DHS should be exempt from FOI Request because 'national security'.
Step four: DHS can do anything they like without the public oversight.
An engine drives a compressor, heat is added to the compressed air and it's used to spin a turbine that isn't hooked up to the compressor? In that case it's the bastard child of a motorjet and a turboshaft - and looking at the temperatures involved it's unlikely to be terrible thermally efficient. They might be able to coax enough power out of it to drive a small chopper, and it might be cheaper and/or easier to maintain than a pure turboshaft engine... but somehow I think this will vanish into obscurity pretty fast.
TL:DR version: Two old ideas mashed together, unlikely to be 85% efficient
Knowing several people in various states in the US, ranging from middle-aged to old... I'm anything but convinced. It seems to me that compared to Norwegians (and most likely to everyone in Northern Europe) you work harder for longer for less pay, and have less to show for it at the end of your life. I don't think that most people enjoys working 60-80 hours a week, knowing that they can't afford to retire... meaning they will work until they drop dead.
To quote a comment that arose over a Christmas dinner a few years ago; "What do you call retired people in the states?" "Greeters at WalMart."
The plural of "stuff I know" isn't data, but in this case it seems like the data is backing up the stuff I know. You don't "pack more into your years" - you're worn out faster by an system built to benefit the rich, and even the rich seems overall less happy than most people I see over on my end.
...to do a crime and get away is simple: Don't tell the world about it afterwards - at least not until the statute of limitations have run out.
Granted, the easier solution for a blabbermouth would be not doing the crime in the first place - something I think is an even better idea for everybody when the crime is drunk driving.
Still boggles and confuses me - as I'm sure it would anyone who are used to paying the amount listed. I know for a fact that a fair number of visiting Americans are boggled and confused by the fact that we're not adding a sales tax on top of the price during check-out... but they tend to agree it's convenient to do it our way. YMMV off course.
Anyone who imagines that all fruits ripen at the same time as the strawberries, knows nothing about grapes. -- Philippus Paracelsus